Nut-lock



| m u u G. H. DYE.

NUT LOCK.

Patented Feb. 22, 1898.

(N0 Model.)

UNITED STATES PATENT? OFFIcE.

GEORGE H. DYE, GOMER, GEORGIA.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 599,554, dated February22, 1898.

Application filed May 18, 1897. Serial No. 637,029. (No model.)

T0 all whon t it may concern:

Be it known that I, GEORGE H. DYE, residing at Comer, in the county ofMadison and State of Georgia, have invented a new and Improved Nut-Lock,of which the following is a specification.

-My invention has for its object to provide a very simpleeasily-manipulated nut-lock; and such invention consists in a nut-lockembodying the peculiar combination and novel arrangement of parts, suchas will be first described in detail and then specifically pointed outin the appended claim, reference being had to the accompanyingdrawings,in which- Figure l is a perspective view of a portion of themeeting ends of two rail-sections with my improved nut-lock applied.Fig. 2 is a face View of the nut, showing the manner in which the sameis turned by finger manipulation. Fig. 3 is a similar view showing howsame is removed by means of a wrench. Fig. 4 is a transverse sectiontaken practically on the line 4 at of. Fig. 1. Fig. 5 is a cross-sectiontaken on the line 5 5 of Fig. 4. Fig. 6 is a view of the spring-doghereinafter referred to.

Referring now to the accompanying drawin gs,in which like numeralsindicate like parts in all the figures, 1 indicates the bolt, which hasthe. usual threaded end 2, which end in the present form has a series ofperipheral longitudinal ratchet-grooves '3.

4: indicates the nut, which may be of a square shape, as shown, or of ahexagonal or other polygonal shape, and which has the usual centralthreaded aperture 4 to receive the threaded end of the bolt.

At one corner the nut is preferably-formed with a slight projectingportion 5, and at such corner and extending rearwardly the nut has achamber 6, in which is held 'to move the spring-dog or ratchet-finger 7,which engages the ratchet-grooves 3 in the bolt and prevents the nutturning backward thereon. This dog consists of a stout spring-plate, theupper end of which is fixedly connected to a pivot-bolt 8, heldtransversely of the chamber 6, and

terminates in a loop 9, which normally projects above the projectingportion 5 for a purpose presently explained.

10 indicates a stout fiat spring which is secured at one end to the edgeof the nut, while its free end projects into engagement with the loop 9in such a manner as to hold the dog 7 normally in engagement with thebolt.

While I have shown a flat spring 10 to hold the dog in engagement withthe ratchetgrooves in the bolt, it is obvious the nut may have a seat toreceive a coil-spring or rubber, as indicated in dotted lines in Fig. 5,to hold the said dog to its looking or normal position.

In practice the dog 7 has apivotal point and loop end so disposed in thechamber 6 that when the loop is depressed to release the dog 7 from thebolt such loop will project down flush with the top of such projection5, which projection, it will be noticed, has its upper edge fiat, sothat when the nut is to be re moved by means of a wrench the jaw of thewrench will push the loop down below the upper edge of the projection 5,but will be held from unduly pressing down on the loop as it engages thefiat upper edge of such projection.

When it is desired to remove the nut by hand, the manipulator pressesthe loop down by thumb force (see drawings) and then turns off the nut,it being obvious that in starting the nut on the bolt the loop must bedepressed so the lower end of the dog will clear the bolt.

My invention is of an exceedingly simple and economical nature and canbe readily applied to or detached from the bolt without the use of anyspecial implement for such pur pose, the arrangement of the look-dog andthe spring for holding same in engagement with the bolt being such thatit will be impossible for the nut to wear loose by the jar caused bypassing trains.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

A nut and bolt lock, consisting of the bolt 1, a nut adapted to befitted upon said bolt, one of the corners of said nut being slightlyprojected and provided with arearwardly-extending chambered portion, apivot-bolt passing through said chambered portion, said pivot-bolt beingprovided with an opening in the portion of the bolt within the saidohainspring-plate in engagement with the end of bei'ed portion of thesaid nut, alooped springsaid bolt 1. plate fitted within the saidpivot-bolt open- 1 ing, one end of said spring-plate being eX- GEORGE 5tended and adapted to engage with the bolt \Vitnesses:

1, and a spring attached to the said nut, A. L. COMER, adapted tonormally hold the said looped R. H. B. GHOLSTON.

